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Questions and Answers
What is the approach to customary international law in the UK and the Commonwealth?
What is the approach to customary international law in the UK and the Commonwealth?
In which countries do national courts tend to find harmonization between international law and internal law?
In which countries do national courts tend to find harmonization between international law and internal law?
What happens when a new statute is introduced in a country that follows the doctrine of incorporation?
What happens when a new statute is introduced in a country that follows the doctrine of incorporation?
What is the role of national courts in relation to customary international law?
What is the role of national courts in relation to customary international law?
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What is the principle that guides national courts in their interpretation of international law?
What is the principle that guides national courts in their interpretation of international law?
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What is the relationship between customary international law and statutory domestic law in most Western European countries?
What is the relationship between customary international law and statutory domestic law in most Western European countries?
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What was the issue in the CAMEROON v. NIGERIA case regarding the Maroua Declaration of 1975?
What was the issue in the CAMEROON v. NIGERIA case regarding the Maroua Declaration of 1975?
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What does article 7(2) of the Vienna Convention provide?
What does article 7(2) of the Vienna Convention provide?
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Is there a general legal obligation for states to keep themselves informed of legislative and constitutional developments in other states?
Is there a general legal obligation for states to keep themselves informed of legislative and constitutional developments in other states?
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What is the general duty of states regarding international law?
What is the general duty of states regarding international law?
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How do states decide to translate their international obligations into internal law?
How do states decide to translate their international obligations into internal law?
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What is the prevailing approach to international law in national legal systems?
What is the prevailing approach to international law in national legal systems?
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What is the main issue that affects the effectiveness of international law?
What is the main issue that affects the effectiveness of international law?
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Why do most states not give primacy to international law over their own municipal law?
Why do most states not give primacy to international law over their own municipal law?
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What is one way municipal law may be used in international law?
What is one way municipal law may be used in international law?
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What is the fundamental principle of international law?
What is the fundamental principle of international law?
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What is the general rule of international law regarding a state's municipal law?
What is the general rule of international law regarding a state's municipal law?
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Who has the power to make or ratify treaties in the United Kingdom?
Who has the power to make or ratify treaties in the United Kingdom?
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What is the Ponsonby Rule in the context of treaties?
What is the Ponsonby Rule in the context of treaties?
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What is the purpose of Article 27 of the Vienna Convention on the Law of Treaties?
What is the purpose of Article 27 of the Vienna Convention on the Law of Treaties?
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What happens if a treaty requires changes in English law but the necessary Act of Parliament is not passed?
What happens if a treaty requires changes in English law but the necessary Act of Parliament is not passed?
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What is the exception to Article 46(1) of the Vienna Convention on the Law of Treaties?
What is the exception to Article 46(1) of the Vienna Convention on the Law of Treaties?
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What was the issue in the Alabama Claims arbitration of 1872?
What was the issue in the Alabama Claims arbitration of 1872?
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What is the approach of English courts when dealing with conflicts between Acts of Parliament and earlier treaties?
What is the approach of English courts when dealing with conflicts between Acts of Parliament and earlier treaties?
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What is the difference between monist and dualist countries in terms of treaty effect?
What is the difference between monist and dualist countries in terms of treaty effect?
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What is the purpose of Rule 1 in international law?
What is the purpose of Rule 1 in international law?
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What is the status of treaties in countries following the legal traditions of continental Europe?
What is the status of treaties in countries following the legal traditions of continental Europe?
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What is the relationship between international law and municipal law?
What is the relationship between international law and municipal law?
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What happens if an Act of Parliament giving effect to a treaty is repealed by a subsequent Act of Parliament?
What happens if an Act of Parliament giving effect to a treaty is repealed by a subsequent Act of Parliament?
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What is the significance of the Free Zones case in international law?
What is the significance of the Free Zones case in international law?
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Study Notes
International Law and Municipal Law
- International law does not entirely ignore municipal law
- Municipal law can be used as evidence of international custom or general principles of law
- International law leaves certain questions to be decided by municipal law
Rule 1: State Cannot Plead Municipal Law as Defence
- A state cannot plead a rule of or a gap in its own municipal law as a defence to a claim based on international law
- Example: Free Zones case, Permanent Court of International Justice
- Similarly, Article 27 of the Vienna Convention on the Law of Treaties states that a party may not invoke the provisions of its internal law as justification for its failure to perform a treaty
- Exceptions: Article 46(1) of the Vienna Convention, if the violation of internal law was "manifest and concerned a rule of fundamental importance"
Rule 2: Duty to Bring Domestic Law into Conformity with International Law
- There is a general duty for states to bring domestic law into conformity with obligations under international law
- States are required to perform their international obligations in good faith
- International law leaves the method of achieving this result to the domestic jurisdiction of states
Attitude of National Legal Systems to International Law
- Most states do not give primacy to international law over their own municipal law
- The prevailing approach in practice appears to be dualist
- The International Court has underlined the fundamental principle of international law that international law prevails over domestic law
Priority
- In the United Kingdom, the power to make or ratify treaties belongs to the Queen on the advice of the Prime Minister, a Minister of the Crown, an Ambassador or other officials
- Treaties require an Act of Parliament to bring English law into conformity with the treaty
Effect of International Law in National Legal Systems
- For England and many common law countries, there is a clear difference between the effects of a treaty in international law and the effects of a treaty in municipal law
- For monists like the United States, treaties ratified in accordance with the Constitution automatically become part of the municipal law of the United States
- For dualists, national law prevails until international law is ratified
Treaties
- In the United States and in those countries following the legal traditions of continental Europe, treaties enjoy the same status as national statutes
- Treaties can repeal any existing law and a new statute will also repeal the nationalised international law statute
- Some constitutions make treaties superior to ordinary national legislation and subordinate law, but rarely superior to constitutional law
Customary International Law
- Doctrine of incorporation: CIL automatically becomes part of national law
- Doctrine of transformation: CIL must be transformed into national law by statute, etc.
- Rules for the recognition of customary international law in the internal sphere are either laid down in advance in the constitution or are gradually formulated by the national courts
- In USA, UK and the Commonwealth, customary rules are to be considered part of the law of the land and enforced as such, with the qualification that they are incorporated only so far as is not inconsistent with Acts of Parliament or prior judicial decisions of final authority.
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Description
Quiz on the relationship between international law and municipal law, including the use of municipal law as evidence and international law's deference to municipal law on certain questions.